CN108894866B - Thermostat housing assembly, engine cooling system and small-cycle control method - Google Patents
Thermostat housing assembly, engine cooling system and small-cycle control method Download PDFInfo
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- CN108894866B CN108894866B CN201810632696.8A CN201810632696A CN108894866B CN 108894866 B CN108894866 B CN 108894866B CN 201810632696 A CN201810632696 A CN 201810632696A CN 108894866 B CN108894866 B CN 108894866B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention relates to the technical field of thermostats, in particular to a thermostat shell assembly, an engine cooling system and a small circulation control method. The thermostat shell assembly comprises a shell, a valve and a thermostat; the shell is provided with a first chamber and a second chamber; a communicating cavity is arranged between the first cavity and the second cavity, and a valve is arranged in the communicating cavity and used for connecting or disconnecting the small circulation of the cooling system; the first chamber is provided with a radiator water outlet; the second chamber is provided with a radiator water inlet; the thermostat is arranged in the first cavity and used for opening or closing the water outlet of the radiator. The engine cooling system comprises the thermostat shell assembly. The small-cycle control method is characterized by comprising the following steps: and a valve is arranged on a small circulation pipeline of the engine cooling system, and the small circulation of the engine cooling system is controlled to be connected or disconnected through the valve. According to the invention, the connection or disconnection of the small-circulation pipeline is realized through the valve, so that the user experience is improved.
Description
Technical Field
The invention relates to the technical field of thermostats, in particular to a thermostat shell assembly, an engine cooling system and a small circulation control method.
Background
In the prior art, the large and small cycles of an engine cooling system are controlled by a thermostat, the warm air is in a normally open state, when the water temperature is low, the thermostat is closed, and the small cycle and the warm air are conveyed through a pipeline; when the water temperature exceeds the full-open temperature of the thermostat, the thermostat is opened, and the large circulation and the warm air pipeline run. When the water temperature is low, the flow of warm air is small, the heat exchange is insufficient, and particularly in a low-temperature environment, the warm air is not hot when the engine is just running, so that customer complaints are easily caused.
Disclosure of Invention
The invention aims to provide a thermostat shell assembly, an engine cooling system and a small circulation control method, and aims to solve the technical problems that when the water temperature is low, the flow of warm air is low, the heat exchange is insufficient, and particularly in a low-temperature environment, the warm air is not hot when an engine just runs, so that customers complain about the situation easily.
The invention provides a thermostat shell assembly, which comprises a shell, a valve and a thermostat, wherein the shell is provided with a valve hole; the housing is provided with a first chamber and a second chamber; a communicating cavity is arranged between the first cavity and the second cavity, and the valve is arranged in the communicating cavity and used for connecting or disconnecting the small circulation of the cooling system; the first chamber is provided with a radiator water outlet; the second chamber is provided with a radiator water inlet; the thermostat is arranged in the first cavity and used for opening or closing the water outlet of the radiator.
In any one of the above technical solutions, further, the first chamber is further provided with a water pump inlet, and the water pump inlet is located at the rear side of the housing.
In any one of the above technical solutions, further, the first chamber is further provided with a warm air return port, and the warm air return port is located at the top of the housing.
In any one of the above technical solutions, further, the second chamber is further provided with a warm air inlet, and the warm air inlet is located at the front side of the casing.
In any of the above technical solutions, further, the second chamber is further provided with an engine degassing pipe, and the engine degassing pipe is located at the top of the housing.
In any of the above technical solutions, further, the valve is an electric valve.
In any of the above technical solutions, further, the radiator water inlet and the radiator water outlet are both located at one side of the housing; the communication cavity is positioned on the other opposite side of the shell.
The invention also provides an engine cooling system which comprises the thermostat shell assembly.
The invention also provides a small circulation control method, which comprises the following steps: and a valve is arranged on a small circulation pipeline of the engine cooling system, and the small circulation of the engine cooling system is controlled to be connected or disconnected through the valve.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a thermostat shell assembly, which comprises a shell, a valve and a thermostat, wherein the shell is provided with a valve hole; the shell is provided with a first chamber and a second chamber; a communicating cavity is arranged between the first cavity and the second cavity, and a valve is arranged in the communicating cavity and used for connecting or disconnecting the small circulation of the cooling system; the first chamber is provided with a radiator water outlet; the second chamber is provided with a radiator water inlet; the thermostat is arranged in the first cavity and used for opening or closing the water outlet of the radiator. The thermostat is arranged in the first cavity to open or close a channel of the cooling liquid to the radiator; the small circulation pipeline is connected or disconnected through the valve, so that the small circulation pipeline is closed at low water temperature to increase the flow of the warm air pipeline and accelerate the heat exchange of warm air; and after the water temperature rises, the valve is opened to communicate the small circulation pipeline, so that the pressure resistance of the whole cooling system is reduced, the flow is increased, the heat load of the engine is reduced, the normal work of the engine is protected, and the user experience is also improved.
The invention also provides an engine cooling system comprising the thermostat shell assembly. Based on the analysis, the engine cooling system realizes the connection or disconnection of the small circulation pipeline through the valve, so that the small circulation pipeline is closed at low water temperature to increase the flow of the warm air pipeline and accelerate the heat exchange of warm air; and after the water temperature rises, the valve is opened to communicate the small circulation pipeline, so that the pressure resistance of the whole cooling system is reduced, the flow is increased, the heat load of the engine is reduced, the normal work of the engine is protected, and the user experience is also improved.
The small circulation control method provided by the invention comprises the following steps: and a valve is arranged on a small circulation pipeline of the engine cooling system, and the small circulation of the engine cooling system is controlled to be connected or disconnected through the valve. Based on the analysis, the small circulation control method closes the small circulation pipeline so as to increase the flow of the warm air pipeline and accelerate the heat exchange of the warm air when the water temperature is low; and after the water temperature rises, the valve is opened to communicate the small circulation pipeline, so that the pressure resistance of the whole cooling system is reduced, the flow is increased, the heat load of the engine is reduced, the normal work of the engine is protected, and the user experience is also improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a thermostat housing assembly provided in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a thermostat housing assembly according to an embodiment of the present invention;
FIG. 3 is a bottom view of a thermostat housing assembly according to an embodiment of the present invention;
FIG. 4 is a right side view of a thermostat housing assembly according to an embodiment of the present invention;
FIG. 5 is a left side view of a thermostat housing assembly provided in accordance with an embodiment of the present invention;
FIG. 6 is a rear view of a thermostat housing assembly according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a state of the lever solenoid of the thermostat housing assembly when open (with the thermostat in a closed state), in accordance with an embodiment of the present invention;
FIG. 8 is a state diagram of a lever solenoid valve of the thermostat housing assembly closed (thermostat closed) in accordance with an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a rod solenoid valve according to a first embodiment of the present invention;
FIG. 10 is a schematic diagram of the solenoid valve of the lever according to the first embodiment of the present invention;
fig. 11 is a schematic diagram of the closing of the rod solenoid according to the first embodiment of the present invention.
Icon:
101-a housing; 102-a rod body solenoid valve; 103-thermostat; 104-a first chamber; 105-a second chamber; 106-radiator water inlet; 107-radiator water outlet; 108-a communication chamber; 109-water pump inlet; 110-warm air return pipe; 111-warm air inlet pipe; 112-engine degassing pipe; 113-a cylindrical portion; 114-incomplete columnar portion; 115-partial cylindrical surface; 116-plane; 117-opening; 118-first side; 119-second side; 120-valve body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1-11, the present invention provides a thermostat housing assembly comprising a housing 101, a valve, and a thermostat 103; the housing is provided with a first chamber 104 and a second chamber 105; a communication cavity 108 is arranged between the first cavity 104 and the second cavity 105, and the first cavity is communicated with the second cavity through the communication cavity; the valve is arranged in the communicating cavity 108 and is used for connecting or disconnecting the small circulation of the cooling system, namely, the opening or closing of the valve controls the connection or disconnection of the pipeline of the small circulation, namely, the opening or closing of the valve controls the connection or disconnection of the communicating cavity 108; the first chamber 104 is provided with a radiator water outlet 107; the second chamber 105 is provided with a radiator water inlet 106, and the radiator water inlet 106 is communicated with the second chamber 105; the thermostat is disposed in the first chamber 104 for opening or closing the radiator outlet 107.
Specifically, when the thermostat is turned off, the cooling system can be placed in a small circulation state; when the thermostat is open, the cooling system can be placed in a high-cycle state. In addition, when the thermostat is closed, the radiator water outlet 107 is in a closed state; when the thermostat is opened, the water outlet of the radiator is in an open state. When the thermostat is closed, although the cooling system is in a small circulation state, the connection or disconnection of the small circulation of the cooling system is still controlled by the valve, that is, after the valve is opened, the communication cavity 108 is in a connected state, and the small circulation is in a connected state; after the valve is closed, the communication chamber 108 is in an open state and the small cycle is in an open state. The thermostat may be a wax thermostat.
The thermostat housing assembly provided by the invention achieves the purpose of opening or closing the passage of cooling liquid to a radiator by arranging the thermostat in the first chamber 104; the small circulation pipeline is connected or disconnected through the valve, so that the small circulation pipeline is closed at low water temperature to increase the flow of the warm air pipeline and accelerate the heat exchange of warm air; and after the water temperature rises, the valve is opened to communicate the small circulation pipeline, so that the pressure resistance of the whole cooling system is reduced, the flow is increased, the heat load of the engine is reduced, the normal work of the engine is protected, and the user experience is also improved. According to the shell assembly of the thermostat, the warm air volume is increased by disconnecting the small circulation, and compared with the method that the warm-up time is increased by increasing the heat load of an engine and increasing the total heat of the engine in the prior art, the warm air volume can be increased better and the user experience is improved.
In an optional solution of this embodiment, the first chamber 104 is further provided with a water pump inlet 109, and the water pump inlet 109 is located at the rear side of the casing; the first chamber 104 is in communication with a water pump inlet 109 (normally open).
Specifically, when the thermostat is opened, the water outlet of the radiator and the water inlet 109 of the water pump are communicated; when the thermostat is closed, the water outlet of the radiator and the water inlet 109 of the water pump are disconnected.
In an optional scheme of this embodiment, the first chamber 104 is further provided with a warm air return port, and the warm air return port is located at the top of the housing; the first chamber 104 is communicated with a warm air return port (normally open state). The warm air return port is communicated with the water inlet 109 of the water pump (normally open state); and the warm air return port is close to the rear side of the housing. The warm air return port is connected with a warm air return pipe 110.
In an alternative solution of this embodiment, the second chamber 105 is further provided with a warm air inlet, and the warm air inlet is located at the front side of the housing. The warm air inlet is communicated with the second chamber 105 (normally open state); the warm air inlet is connected with a warm air inlet pipe 111.
In an alternative of this embodiment, the second chamber 105 is further provided with an engine deaeration pipe 112, and the engine deaeration pipe 112 is located at the top of the housing, and the engine deaeration pipe 112 is located near the front side of the housing. The engine deaeration conduit 112 communicates with the second chamber 105 (normally open state).
In an alternative of this embodiment, the radiator inlet 106 and the radiator outlet 107 are both located on one side of the housing.
Specifically, the radiator water inlet 106 and the radiator water outlet 107 are both located on the right side of the housing.
In an alternative to this embodiment, the communication chamber 108 is located on the opposite side of the housing. The communication chamber 108 is located on the left side of the housing.
In an alternative of this embodiment, the valve is an electric valve, and the electric valve may be a solenoid valve or an electric rotary valve.
Specifically, the solenoid valve may be a rod solenoid valve 102, and the rod solenoid valve 102 includes a valve body 120 and a rod; the valve body drives the rod body to rotate. The valve body is the structure in the prior art and is not specifically explained. The communication chamber 108 is cylindrical. The rod body includes a cylindrical portion 113 and an incomplete cylindrical portion 114 connected to the cylindrical portion 113.
The incomplete cylindrical portion 114 is a remaining portion of a cylinder, which is a cylinder having an axial cross section obtained by cutting a part of the cylinder in the axial direction of the cylinder, that is, the circumferential surface of the incomplete cylindrical portion 114 is defined by a partial cylindrical surface 115 and a plane 116.
The rod body is inserted into the communicating cavity 108 and is matched with the communicating cavity 108. For convenience of description, in this embodiment, the direction from the first chamber 104 to the second chamber 105 is the positive direction in which the communication chamber 108 extends; the communication chamber 108 has an opening formed in a wall thereof, the opening having a first side 118 and a second side 119 opposite to each other, and a direction from the first side 118 to the second side 119 is parallel to a positive direction. The direction of the rod body inserted into the communication cavity 108 is the same as the positive direction of the communication cavity 108; when the structure of the rod body is designed, after the rod body is inserted into the communicating cavity 108, the joint of the incomplete columnar part 114 and the cylindrical part 113 should not exceed the second side 119, so as to ensure that a channel formed between the incomplete columnar part 114 and the communicating cavity 108 can be communicated with the opening 117 after the rod body rotates for a set angle, thereby realizing the communication between the first cavity 104 and the second cavity 105; the cross-sectional area of opening 117 is not greater than the area of the cylindrical surface of incomplete cylindrical portion 114, that is, the projection of opening 117 onto the cylindrical surface of incomplete cylindrical portion 114, that is, the length of opening 117 is not greater than the length of incomplete cylindrical portion 114, and the width of opening 117 is not greater than the radial width of incomplete cylindrical portion 114.
When the plane of the incomplete cylindrical portion 114 is aligned with the opening 117, the rod body solenoid valve 102 is in an open state, and when the plane of the incomplete cylindrical portion 114 is aligned with the opening 117, the incomplete cylindrical portion 114 is rotated by 180 °, and when a part of the cylindrical surface of the incomplete cylindrical portion is aligned with the opening 117, the rod body solenoid valve 102 is in a closed state.
It should be noted that, in this embodiment, the electric valve is not limited to the above two types, and other forms of electric valves may be freely selected according to actual conditions to use the function of connecting or disconnecting the small cycle of the cooling system; for other forms of the electric valve, detailed descriptions are omitted.
The main working principle of the temperature-saving shell assembly provided by the embodiment of the invention is as follows:
when the engine is turned off, the rod body solenoid valve 102 is not energized, the rod body solenoid valve 102 is in an open state (see fig. 7), the plane of the incomplete cylindrical part 114 is opposite to the opening 117, and the small circulation channel is in a communicated state; when the engine is started, the ECU energizes the electromagnetic valve according to a water temperature signal to enable the rod body to rotate for 180 degrees (see figure 8), part of the cylindrical surface of the incomplete cylindrical part is opposite to the opening 117, and the small circulation channel is in a disconnected state; when the water temperature reaches 80 ℃, the electromagnetic valve is cut off, the rod body rotates reversely by 180 degrees again, the plane of the incomplete columnar part 114 is kept opposite to the opening 117, the small circulation channel is opened again, the pressure resistance of the cooling system is reduced, the overall flow is improved, and the normal work of the engine is ensured. It should be noted that in the operating principle of the temperature-saving shell assembly, only the control of the solenoid valve is described; the thermostat is turned on or off under the same conditions as those in the prior art, and will not be described in detail.
According to the thermostat shell assembly provided by the embodiment of the invention, the valve is integrally installed in the thermostat shell assembly, when the engine is closed, the valve is in an opening state, the small circulation channel is opened (namely, the small circulation is communicated), and the filling of the engine is ensured; when the water temperature of the engine is low, the engine is started to be electrified, the valve is closed, the small circulation is closed (namely, the small circulation is disconnected), and when the water temperature reaches 80 ℃ (the general warming time), the valve is opened, the communication state of the small circulation is recovered, the flow of the whole cooling system is increased, and the normal work of the engine is protected. In addition, the thermostat shell assembly provided by the embodiment of the invention does not need to change an engine calibration control strategy, only needs to carry out power on/off control on the electric valve, realizes closing/opening of a small cycle, improves the flow of warm air when the water temperature is low to achieve the purpose of increasing heat exchange, opens a small cycle pipeline when the water temperature is higher, reduces the pressure resistance of a cooling system, improves the flow, and protects the normal work of an engine. In conclusion, the invention can close the small circulation at low temperature, improve the flow of the warm air, meet the requirements of customers, and open the small circulation channel at high temperature, thereby ensuring the normal work of the engine.
The embodiment also provides a small-cycle control method, which comprises the following steps: and a valve is arranged on a small circulation pipeline of the engine cooling system, and the small circulation of the engine cooling system is controlled to be connected or disconnected through the valve.
Specifically, the valve is disposed in the thermostat housing assembly, and optionally, the valve can be disposed in a communication cavity of the thermostat housing assembly. It should be noted that the valve can also be arranged on other components which can realize the connection or disconnection of the small circulation.
The small circulation control method is characterized in that when the water temperature is low, the small circulation pipeline is closed to increase the flow of the warm air pipeline and accelerate the heat exchange of warm air; and after the water temperature rises, the valve is opened to communicate the small circulation pipeline, so that the pressure resistance of the whole cooling system is reduced, the flow is increased, the heat load of the engine is reduced, the normal work of the engine is protected, and the user experience is also improved.
Example two
The invention also provides an engine cooling system which comprises the thermostat shell assembly provided by the first embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination.
Claims (8)
1. A thermostat shell assembly is characterized by comprising a shell, a valve and a thermostat; the housing is provided with a first chamber and a second chamber; a communicating cavity is arranged between the first cavity and the second cavity, and the valve is arranged in the communicating cavity and used for connecting or disconnecting the small circulation of the cooling system; the first chamber is provided with a radiator water outlet; the second chamber is provided with a radiator water inlet; the thermostat is arranged in the first cavity and used for opening or closing the water outlet of the radiator;
the valve is an electric valve;
the electric valve is an electromagnetic valve, the electromagnetic valve is a rod body electromagnetic valve, and the rod body electromagnetic valve comprises a valve body and a rod body; the valve body drives the rod body to rotate; the rod body is inserted into the communicating cavity and matched with the communicating cavity;
the rod body comprises a cylindrical part and an incomplete cylindrical part connected with the cylindrical part; the circumferential surface of the incomplete columnar part is enclosed by a part of cylindrical surface and a plane; an opening is formed in the cavity wall of the communication cavity, and the projection of the opening is on the cylindrical surface of the incomplete columnar part;
when the engine is closed, the valve is in an open state, so that the small circulation is communicated; when the engine is at low water temperature, starting the engine to be electrified, closing the valve and disconnecting the small circulation; when the water temperature rises, the valve is opened to communicate the small circulation;
when the plane of the incomplete columnar part is aligned with the opening, the rod body electromagnetic valve is in an open state; and under the condition that the plane of the incomplete cylindrical part is opposite to the opening, the incomplete cylindrical part is rotated by 180 degrees, and when part of cylindrical surface of the incomplete cylindrical part is opposite to the opening, the rod body electromagnetic valve is in a closed state.
2. The thermostat housing assembly of claim 1, wherein the first chamber is further provided with a water pump inlet, and the water pump inlet is located at a rear side of the housing.
3. The thermostat housing assembly of claim 2, wherein the first chamber is further provided with a warm air return port, and the warm air return port is located at a top of the housing.
4. The thermostat housing assembly of claim 2, wherein the second chamber is further provided with a warm air inlet, and the warm air inlet is located at a front side of the housing.
5. The thermostat housing assembly of claim 1, wherein the second chamber is further provided with an engine deaeration conduit, and the engine deaeration conduit is located at a top of the housing.
6. The thermostat housing assembly of claim 1, wherein the radiator water inlet and the radiator water outlet are both located on one side of the housing; the communication cavity is positioned on the other opposite side of the shell.
7. An engine cooling system comprising the thermostat housing assembly of any one of claims 1-6.
8. A method of small loop control, the method comprising: a valve is arranged on a small circulation pipeline of the engine cooling system, and the small circulation of the engine cooling system is controlled to be connected or disconnected through the valve; the valve is an electric valve;
the thermostat housing assembly of the engine cooling system comprises a housing, a valve and a thermostat; the housing is provided with a first chamber and a second chamber; a communicating cavity is arranged between the first cavity and the second cavity, and the valve is arranged in the communicating cavity;
the electric valve is an electromagnetic valve, the electromagnetic valve is a rod body electromagnetic valve, and the rod body electromagnetic valve comprises a valve body and a rod body; the valve body drives the rod body to rotate; the rod body is inserted into the communicating cavity and matched with the communicating cavity;
the rod body comprises a cylindrical part and an incomplete cylindrical part connected with the cylindrical part; the circumferential surface of the incomplete columnar part is enclosed by a part of cylindrical surface and a plane; an opening is formed in the cavity wall of the communication cavity, and the projection of the opening is on the cylindrical surface of the incomplete columnar part;
when the engine is closed, the valve is in an open state, so that the small circulation is communicated; when the engine is at low water temperature, starting the engine to be electrified, closing the valve and disconnecting the small circulation; when the water temperature rises, the valve is opened to communicate the small circulation;
when the plane of the incomplete columnar part is aligned with the opening, the rod body electromagnetic valve is in an open state; and under the condition that the plane of the incomplete cylindrical part is opposite to the opening, the incomplete cylindrical part is rotated by 180 degrees, and when part of cylindrical surface of the incomplete cylindrical part is opposite to the opening, the rod body electromagnetic valve is in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632696.8A CN108894866B (en) | 2018-06-19 | 2018-06-19 | Thermostat housing assembly, engine cooling system and small-cycle control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810632696.8A CN108894866B (en) | 2018-06-19 | 2018-06-19 | Thermostat housing assembly, engine cooling system and small-cycle control method |
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| CN108894866A CN108894866A (en) | 2018-11-27 |
| CN108894866B true CN108894866B (en) | 2020-07-24 |
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| CN204140180U (en) * | 2014-09-30 | 2015-02-04 | 长城汽车股份有限公司 | Engine water pump refrigerating device and engine-cooling system and vehicle motor |
| CN204126717U (en) * | 2014-10-17 | 2015-01-28 | 宁波市鄞州德来特技术有限公司 | The total assembling structure of thermostat and thermostat base thereof |
| CN106401731B (en) * | 2016-11-16 | 2019-04-02 | 江西志骋汽车有限责任公司 | Integrated engine outflow cover for water and method for controlling cooling system |
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